57 lines
1.7 KiB
TypeScript
57 lines
1.7 KiB
TypeScript
import { Directive, Input, OnInit, TemplateRef, ViewContainerRef } from "@angular/core";
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import { AllowedFeatureFlagTypes, FeatureFlag } from "@bitwarden/common/enums/feature-flag.enum";
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import { ConfigService } from "@bitwarden/common/platform/abstractions/config/config.service";
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import { LogService } from "@bitwarden/common/platform/abstractions/log.service";
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/**
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* Directive that conditionally renders the element when the feature flag is enabled and/or
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* matches the value specified by {@link appIfFeatureValue}.
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*
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* When a feature flag is not found in the config service, the element is hidden.
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*/
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@Directive({
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selector: "[appIfFeature]",
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})
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export class IfFeatureDirective implements OnInit {
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/**
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* The feature flag to check.
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*/
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@Input() appIfFeature: FeatureFlag;
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/**
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* Optional value to compare against the value of the feature flag in the config service.
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* @default true
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*/
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@Input() appIfFeatureValue: AllowedFeatureFlagTypes = true;
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private hasView = false;
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constructor(
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private templateRef: TemplateRef<any>,
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private viewContainer: ViewContainerRef,
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private configService: ConfigService,
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private logService: LogService,
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) {}
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async ngOnInit() {
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try {
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const flagValue = await this.configService.getFeatureFlag(this.appIfFeature);
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if (this.appIfFeatureValue === flagValue) {
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if (!this.hasView) {
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this.viewContainer.createEmbeddedView(this.templateRef);
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this.hasView = true;
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}
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} else {
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this.viewContainer.clear();
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this.hasView = false;
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}
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} catch (e) {
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this.logService.error(e);
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this.viewContainer.clear();
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this.hasView = false;
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}
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}
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}
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